The United States is not a nation. From the very beginning it was more of a collection of various nations united by ideas of political unity and by fairly high levels of tolerance for other groups within that union. The US certainly contains nations, but it was never a single nation.
The theory goes like this: capitalism combines with consumerism and advertising to make us sad, lonely, and forever chasing after material goods. So we consume endlessly and the Machiavellian capitalists reap the rewards. It's not a great theory.
The modern norm is that economic growth causes measured income inequality to increase. But to have greater income equality and greater economic growth. It simply requires more free market policies and less government interventionism.
Firearm sound suppressors are nothing like they are portrayed in Hollywood movies. Also, they are already heavily regulated by federal officials. Efforts to ban them are nothing more than political posturing.
The vast majority of recorded hate crimes fall into a number of activities that normally fall under misdemeanor or even civil categories. The real and far-more-common threat continues to be regular ol' ordinary violent crime.